Swing states are not the only votes that make a difference. If enough people believed that in a solid state and didn’t vote the outcome would change ie their vote counts.

Your vote should go to your choice, not the opposition.

Your vote doesn’t get changed based on the outcome it stays the same. It is still counted.

Issue voting is winner take all and unless I missed it you don’t have a problem with that.

What you are asking for is a more granular representation for votes, not to “make everyone’s vote count”.