Much of what you suggest is a drop in the ocean and requires people's habits to change in ways people are not happy to listen to - and - again - it's a drop in the ocean. Go vegetarian, it helps the environment - but don't expect anyone to follow, and don't expect it to mean anything.

Massive electrification - production (solar+wind+storage) and usage (EVs, as people won't stop driving no matter what, and heat pump heating and cooling) can be successfully driven with incentives and would have meaningful impact. People love to save money without losing comfort, incentives are ultimately budget neutral on a timescale, and for Europe this also ties into strategic energy sovereignty which is a nice added driver. Vote out and call out politicians not prioritizing this.

Bonus, you get to call them unpatriotic as they reinforce dependence on people who we're no longer on friendly terms with (no matter whether you look west or east)