let me put it this way:
Texas will likely NOT flip blue this year for the presidential election. The presidency is not the only thing on the ballot. Other positions are easier to flip blue, which will give democrats incumbency, prior experience, etc. that will make it easier for them to hold higher offices later. If you’re going to foster up-and-coming politicians whose beliefs align more closely with your own, you have to vote for them early in their careers. So you have to vote. So you might as well make your state LOOK a little more purple so fewer doubters choose not to vote next time around
Being a defeatist isn’t helping anyone. Gerrymandering is a problem but it isn’t bulletproof, and broad changes to voting patterns will overcome gerrymandering. Those district borders are drawn from historical voting data, which will become inaccurate if you charge your own status from non-voter to voter