Excellent point. And you kinda hit on the other thing about our present situation that really pisses me off. "It's politics. Don't take it personally. Reasonable people can disagree." OK, yes, reasonable people can disagree on political topics. If you think we should go to a "Medicare for all" healthcare system and I think we should just spend more money to expand Obamacare, well those are both respectable positions that can be supported with logic and facts and we can have a rational debate. But notice that both positions start with the idea that everyone should have access to affordable health care.
If you start with the idea that we as a society should be trying to help everyone, especially marginalized groups, then even if we come to different conclusions, we can still reasonably disagree. But if you start with a position of demonizing immigrants, LGBTQ teens, or any other marginalized group, then, no, we are not going to reasonably disagree and yes, I will take it personally. Because as @Brisketexan, that makes you an asshole. Same goes for if you start with insane conspiracy theories like microchips in vaccines or pedophile rings out of pizza parlors.