I completely disagree.
You seem to desire a very progressive social-democracy or maybe even socialist US government - this isn't going to happen within the next few decades - rural America is entirely against this - and rural Americans hold roughly 1/2 the national vote.
Whereas, under Biden, massive change will occur - decision making based on science and expert consensus will once again prevail - as opposed to anti-science/whatever Trump believes governance.
On the world stage, the US will once again engage as a force for Democracy - renewing our friendships with traditional allies.
With respect to policing - the prospect for major reform now exists under Biden. Police are far too aggressive in their interactions - especially with minorities and for sure with African-Americans. The over-aggressive posture adopted by police far too often leads to bad outcomes - officers draw their guns and shoot - when less aggressive actions would have sufficed.
Finally, the caustic us-versus-them mentality advanced at every turn by Trump - will be replaced by leadership wishing not to spark confrontation where possible.
I desire a lack of corruption in government, currently that encompasses both Dems & Repubs - there is a political elite class of politicians that are only concerned with getting elected, catering to special interests & continuity rather than serving their constituency. If that equates to socialism then you are free to call it what you like
Massive change under Biden will NEVER occur. He is not someone who has ever voted for making massive changes either as a senator or pushing for legislation as VP under Obama. If the comparison is only Trump then of course it will be a massive change in approach but in terms of actual legislation to improve the country or those who are affected much, there is no precedent to support the notion he or Harris will usher in massive changes. At best, they will reset to pre-Trump and while that is a welcome move, it is more a question of taking one step forward after 2 back
If you think Biden is going to reform police anymore than Harris, then you have not at all been paying attention to either. It won't be the wild, wild, west like it has been under Trump but violence against Blacks and unchecked police brutality were occurring under Obama/Biden & Harris in California. Harris' record when it comes to this is appalling
As I have said before, when the clapping & dancing have subsided we will see that Biden will move to return things to the status quo pre-Trump but even the country was in desperate need of actual change
The progressive block led by AOC actually inspire change and are being binned by their own party, it is a telling indictment of what you can expect when even she was thinking of not running again. America will rid themselves of the cancer that is Trump but half of America that supports him remain as does a toxic Democratic party. It's fiction to think massive change is on the horizon