Outdoors, where you can put some distance between yourself and them?
Sure, if it's one person. Where I used to live, the nearest park would have multiple groups engaged in loudness wars, each upping their volume in response to the others, so nobody could enjoy the park. Public spaces shouldn't be held hostage by assholes who don't understand how to behave in public, to the detriment of everyone else.
As far as what to do, it would be nice if the existing rules would be enforced that prohibit this behavior, but people cry racism for being told off for bringing a massive speaker to blast merengue and dembow in the park and somehow find support, rather than people asking why they're blasting any type of music in the park to begin with.
Eh, non-voters in some states could help Trump win, but it's hardly a universal thing. My bigger issue with this sort of rhetoric is that criticizing absolutely reprehensible policies advanced by the Democrats does not equal endorsing Trump, as many Zionist shills here like to claim. I want to be able to unreservedly back Democratic candidates in the upcoming elections, but "enables and supports genocide and the massacre of civilian men, women and children," is one hell of a reservation to make your voters have.