@br00t4c ... 'We must build an alternative political structure and put pressure on politicians every day, not just once every four years.'
IMHO; The best way to do that is NOT withholding your vote (uncommitted, no vote) but to support and vote for a third party (I'm going Green).
Your options are NOT just 'red vs blue' but red or blue vs Green.
Voting Green puts blue/red on notice that they are NOT the only option.
Voting only red/blue is voting purple.