Getting a job where? Just like the internet is home to many different subcultures, so is the USA. A political comment that makes you unhireable in Silicon Valley could make you a more attractive hire to a defense contractor.

On a personal note, I once was denied a job based on the fact that I made a one-off comment 5 years previous that I was starting to dislike Object Oriented Programming. That's all it took to convince this company I wasn't fit to work for them.

If a comment that innocuous can be used as a reason not to hire, then you have two choices: never say anything online ever or stop worrying about it. I opt for the latter. So has most of Gen Z. Worrying if expressing utter mundanity online is going to be used against you is no way to live.