Yeah in our system, those kinds of governments happen when there is a split in Congress (one party has a majority in the House, the other in the Senate) and/or when Congress and the presidency are held by opposite parties. And this is actually more the usual setup! For instance, it was that way until last January, and it's very likely that it will be that way again this coming January. But it just happens that at the moment, and since the beginning of the current presidential administration, there has been totally unified government in which the Democrats have no power whatsoever.

To me, the thing that was "weak" was losing all those elections in the last cycle. But it's not "weak" to be unable to do anything with no power.