If you won't vote to stop Trump getting in you are an enemy of reason, of freedom, of equality, of science. If you don't vote to stop Trump getting in you will be knowingly standing by while others vote for a violence-promoting bigoted thug. You will have had the chance to help stop him by doing nothing more than casting a vote. By standing by you reject decades of work by brave fighters for racial equality, for equal rights for women, for reproductive rights, for marriage equality.
You have probably read Sagan on science being a candle in
the dark, but you don't care if that candle is snuffed out. You have
probably read Hitchens on separation of Church and state, but you don't
care if Jefferson's wall is trampled. You may have read the critical
work of Gore Vidal, but you don't care if freedom to criticise
politicians is lost. If you don't vote to stop Trump getting in you
don't deserve the right to vote, because every vote is a chance to
change the world, and you will have abandoned the world, and sacrificed
millions to the narcissistic delusions of a bully.