Having the 51 majority doesn't really matter, you need a supermajority to overpower the filibuster. Unlikely the Dems will get that any time soon.
Even so having the Presidency has massive advantages when it comes to courts and passing bipartisan bills. It's better than nothing but keep in mind even a sweeping Democrat win in 2024 doesn't mean the Republicans are going to become irrelevant.
Even so having the Presidency has massive advantages when it comes to courts and passing bipartisan bills. It's better than nothing but keep in mind even a sweeping Democrat win in 2024 doesn't mean the Republicans are going to become irrelevant.