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".
You've yet to address how votes in states that lose are not counted. I can see 6,006,429 people in California voted for Trump in 2020 so their votes were counted.
Votes are ignored when your state votes against you (Ex: California votes 51% blue 49% red, but 100% of the electoral votes go to blue, effectively ignoring half the voters). Your vote should go to your choice, not the opposition.
This is some real woosh material right here. The point I'm trying to make seems to be sailing right over your head while you gripe about technicalities.
Those people effectively did not have their votes counted. They effectively voted for Biden in the end because their electoral votes that represent them voted against them.