I think the best strategy for the Democrats is to pass Infrastructure Bill #1. More "progressive" Democrats have wanted to hold it hostage so they can try and get the larger Infrastructure Bill #2 passed.
That strategy is risky if it causes both bills to not pass. Risky in the public relations / political environment.
Among the rank and file American public, there isn't a strong enough consensus for a "more to the left" bill. That's one of the big problems. Bolder measures need more support at the grassroots level.
As for doing more to combat climate change, big changes in American lifestyles; things like car dependency and single family residential living, would address climate change. A political consensus for this would indicate a strong political consensus for tackling climate change in a really big way. This kind of consensus would really change politics, but we don't seem to have that consensus.
The progressive's larger infrastructure bill isn't really that either. It's more of a large collection of items ranging from climate change to childcare to college funding. A big box of items put together mostly because it's a train that might get through Senate filibuster because it's hooked to the engine of reconciliation.
That's kind of an artifact of our dysfunctional Senate; rather than a "hill to die on" related to climate change.
Problem is, there isn't a big consensus to back it among the American people and the electorate could swing back toward giving Republicans the slight margin again come 2022 Congressional elections.
Now some people think, like folks who write in the Strong Towns Facebook Group, that infrastructure spending is too "sprawl centric" and too "automobile centric." The American way; a beast that we have created, is just too expensive and will always keep us behind and in debt on the upkeep it requires.
I don't know how a lot of the Strong Towns people feel about this infrastructure debate going on today as I write. Would they back Infrastructure Bill #1, Infrastructure Bill #2, or neither?
My guess is, they are likely all over the map on these specific bills.
Both #1 and #2 are probably better than the more auto centric freeway oriented infrastructure spending of years past.
I guess that Transportation Secretary Pete Buttigieg has had a hand in the crafting of these bills so they both have emphasis on things like public transit. Less money dumped into freeway sprawl.
Infrastructure Bill #1 is likely a modest step in a better direction than what we have had over decades past.
It isn't revolutionary change, but it seems like revolutionary change will have to come from the American people who, for the most part, are not ready yet.