I understand where you are coming from but I would consider those to be the knock-on effects and disadvantages of first past the post voting rather than Gerrymandering. If we magically got rid of Gerrymandering tomorrow. People would still not turn out for elections where one candidate has a large lead over another.
The specific unfair advantage given in drawing a district in a way that either packs or cracks voters does not apply to the state wide races the same way as the district races do.