If you were referring to only politicians, they're basically all millionaires.
(And I think you'll find that I disproportionately support the non-millionare politicians.)
You're counting your opponents as the second group and your allies as the first group. Someone on your opposing side could make the _exact_ argument by reversing the groups. It's telling that your statement does nothing to show what your actual politics are.
The people I support politically are generally wealthy. I am also fairly confident that the ones who aren't probably will be if they are in politics long enough and not necessarily through corrupt means. Anyone of that stature can, at the very least, sell quite a few books on their name alone for instance. It goes hand in hand that influential people can more easily amass wealth.
And I think my politics are more accurately represented by normal people vs. career politicians than by donkey mascot vs. elephant mascot. I vote Democrat as a matter of lesser-of-two-evils, but I yearn desperately for a world in which no one who's involved in any way with DCCC can have influence in politics ever again. If you find me someone who votes Republican who says the like AOC and hate Trump, I'd probably agree with them on a lot of things.
What you said paints your political allies as people you know personally who are essentially "down on their luck" people who are trying to make it while your political opponents are millionaires the likes of Mitch McConnell or a Lindsay Graham.
Someone with the opposite political leanings as you could say that their political allies are the steel workers in Pittsburgh and the auto workers in Detroit who's job were lost to globalization and free trade (and they vote Republican as a lesser of two evils) while their political opponents are millionaires like Nancy Pelosi and Diane Feinstein.
You're using two different categories of people as allies and opponents.
If you cast your argument using the same categories, it doesn't make sense. Your allies, Pelosi and Feinstein are just as wealthy as your opponents, McConnell and Graham. Or inversely, your allies, the folks buying lotto tickets accepting below market salaries who just haven't joined the right startup are just as poor as your opponents, the factory workers and coal miners who've lost their jobs to globalization and technology.
I think you're trying to say your allies are both groups from the second example and your opponents are both groups from the first example but that doesn't really work because you're actively supporting half of each and actively working against the other half. You've chosen a side that you believe will help both sides, even though they are your opponents but I don't think that's a unique position to your side.
becoming a millionaire is statistically highly unlikely, and why would such an unlikely event warrant anti-union sentiment?
Less unlikely than 3 decades ago, but the chance of a (lower) middle class person becoming a millionaire, and especially a liquid (non-retirement+primary home) millionaire, which is the kind of thing we think of when we say millionaire, is exceedingly low.
I know of nobody on the right that has voted with that mindset.
Of course, this "TEM" thing is partly a face-saving move for our white, right neighbors by progressives who don't want to point to the racism/classism and a willingness to accept Pyhric victories that really drives a lot of anti-union sentiment. Why, not wanting the "undeserving" to receive undo benefits is the crux of several arguments on this very page.
My political opponents are actual, non-embarrassed millionaires and billionaires from families of millionaires and billionaires.
My political allies are temporarily embarrassed millionaires, from the folks accepting below-market salaries to work at a potential unicorn to the folks buying literal lotto tickets at the corner store. A few of them are no longer temporarily embarrassed, having joined the right startup, which only goes to demonstrate that the worldview is correct. Things worked out for them without unionizing, clearly things will work out for me too one day.