I hear people say things like “if Obama (or anyone left of Republicans) did what Trump did, there would be hell to pay.”
Why isn’t that argument taken more seriously by people on the left as an implicit admission that the left is politically weaker or less effective at wielding power?
If one side “can’t get away with” actions that the other can, doesn’t that suggest a real imbalance rather than moral superiority?


Because the Left doesn’t get to wield any power and the right wing Dems care more about not upsetting their owner donors and their friends than insignificant details like justice and the needs and wants of their constituents.
It’s both and also a secret third thing:
Republicans are MUCH more brazen and shameless, MUCH more skilled at messaging, AND the right wing Dems in power would rather still get paid the big bucks than do their job, see above.