> Have actual democratic primaries and get rid of their super delegates.

Superdelegates exist but have no vote in the first round unless their votes collectively can have no impact on the outcome; this reform was adopted for 2020 and beyond by the DNC in 2018.

The other points are just arguments that Democrats need to adopt MAGA positions on currently salient, highly-divisive issues for which preferences are highly correlates with other MAGA policy preferences, which would remove the reasons many Democratic voters support the party without (because of the correlation of preferences) making the party more palatable to most people who currently disagree with the Democrats on those issues.