The problem with your "point" isn't the point itself, it's that you demonstrate illiteracy in the science of the last 100 years or more while making your point. There were always the limits of what we know, but we also got better in knowing where the limits are, and they aren't in the infrared and radio area effects.

We (as humanity) do "mess with the stuff" and we (as in scientists) even know exactly where and how much we (as in "political and economic forces") do that. The amount of fossil fuels use is one good example. And having huge nuclear stockpiles ready for launch is another. And we "know better" (as in knowing that the effects won't be desirable for "us") even now, but look how many forces pretend we don't.

Having basic scientific literacy actually matters, otherwise you'll fall worrying for pure distractions, like "you should worry that mobile phones emit radio waves to your brain." No, either forget it, that's pure distraction, or at least, learn a little of physics, you'll benefit from that.

And we don't have to wait 50 years. We already know the exact problems that will be much bigger in 50 years if we don't act.