that doesn't make his interest invalid. In fact, it's the basis of democracy - we add up the number of people with interest A vs. interest B and do the one with the most votes.

That's important. Our own interests are important. It's equally important that we discuss why our interests are important enough to disallow others from pursuing theirs. And then persuade others to our side. So don't dismiss someone for having an opinion in contrast to anyone else, argue the opinion itself.

Are you referring to the astronomer or the 5G user? ;)