No one said they're not going to pay taxes. They advocated for what they consider to be a better policy. What you're saying is like responding to someone who thinks we shouldn't start random wars with "we don't get to choose what we pay taxes for". Uh, yeah, we do get to advocate for and vote on how the government spends our money. We can and should point out that starting pointless wars is bad and we should encourage others to support a policy where we stop doing it. Arguing against specific uses and for other uses of taxes to build consensus for your point of view is exactly what people are supposed to do in a democracy.