People keep pointing out the gerrymandering, ignoring that their state governments are red too. I live in Ohio, and people keep telling me that the state is really blue. Yet, I can't remember the last time we had a Democratic Gov. Vance and Moreno won statewide elections.

Well, the gerrymandering affects both presidential elections and more local results.

Gerrymandering doesn't affect the Presidential elections. Each state gets electoral votes based on the number of Congressional + 2 for the Senators. Nothing to do with gerrymandering.

Okay

Gerrymandering changes the voting districts, which scews the overall election results.

It does, but the statewide elections return consistent red results. Hence, the examples of the Governor and US Senator. If the blue majority of voters were truly blue, or even if it was close to 50/50, you would expect a blue governor more than once every 30 years. See it now?