Real answer? Because those tariffs will have barely any meaningful effect one way or the other. They're pure politics and no one deep in the field really cares that much. The solar tariffs are fairly annoying, but solar is by far the cheapest form of energy production even if material costs blast up a full 50% -- especially since those cost increases have no effect on the far more important cost center of trade labor. If Biden has a legacy other than supporting genocide in Gaza, it will be as the climate president.
The Inflation Reduction Act is the biggest suite of climate subsidies the world has ever seen. It's an industrial policy so huge that it would make Stalin sweat. Except... it's working. Clean energy industry in the US was doing OK before and is just exploding now. Legitimately hard to overstate how huge it is, and even countries you think of as having intense green energy programs are looking at the US with some envy. And the design of the bill is such that it spins up virtuous cycles. As industries and slow money move in to take advantage of the bill, they become part of the constituency to keep it alive and continue to build up more and more of the same investment. If it can just survive a few more years, it'll be almost as impossible to repeal as medicare.
And none of that seems to matter. Because no matter what they do it'll never be good enough for the loud voices on the left. If you aren't achieving global socialist revolution that means any progress you do achieve is a waste of time and no different than the actual allies of global apocalypse. There's always some stupid little "just one problem!" nitpick that people on places like the fediverse think reduces an entire policy to ashes even though it just isn't even particularly important.
Contrary to "common wisdom" and industry lies, LNG is not significantly better emissions than coal. When exported, especially across the Pacific to e.g., Japan, it's sometimes within just a couple of percentage points the lifetime emissions as coal.
Solar is already a vastly cheaper form of energy than fossil gas and wind is rapidly going down those learning curves (it's already comparable in many geographic areas. The issue that US energy utilities simply don't care. They only really know how to deal with "dispatchable" power generation. They don't want to change. They don't want to adapt. They'd rather spend more (ratepayer) money doing things the old way. Even though we already have the technology to deal with nearly all of the "reliability" issues that come with renewable generation.
Your voice can influence this. In many states, the energy utilities are regulated by a regulatory commission -- and those commissioners, frankly, aren't getting a steady stream of feedback. They are often elected officials. I've got one of my commissioner's cell phone number -- they can sometimes be THAT accessible -- and they're in charge of holding these monopoly utilities to task.
We don't need a global socialist revolution to seriously address climate change. Tons of progress is already happening, even under the regimes we're currently stuck with. Don't just read articles. Talk to friends and family. Take action. Make calls. Vote. Donate. It's a still a winnable battle so long as you don't let the doomsayers suck all the air out of the room, but it gets less so every day that people stand by.