It does matter, even if you don't view it as significant in the broader context. Even from the perspective of starting a communist revolution, the more fascist and conservative the government, the more brutal the suppression.

My personal position is not for one system of government over the other as much as it is for better outcomes for society. I have enough trans friends and relatives that I want as few conservative reactionaries in power as possible.

Since it seems unlikely for capitalism to be toppled before the republican party crumbles, I still think it's worth working towards, especially when it just takes a single piece of paperwork every couple years to help.