Since his success metric for launching Tesla was the success of green tech itself rather than Tesla's market share and his goals for SpaceX were similarly broad rather than purely financial, making a point of trying to make him fail is also negatively aligned with long term civilizational outcomes. It would take a very petty person to hope that we go back to throwing away rockets after a single use, just because they have a beef with the person in and inspired others to build a reusable one.
If you feel that the 2018-2021 era version of Twitter was its ideal state, that's defensible even if a bit odd. But hoping a platform millions love fails, just because of the guy who bought it (and has a track record of doing great things for humanity), then your goal sucks.