Actually, the Democratic party has a zillion things it wants. Gun control, abortion, lesbian rights, trans rights, gay rights, marriage with unlimited permutations...the list is endless. The problem, and the reason they must focus on their hatred of Trump is, there is not policy that will capture a plurality of potential Democratic voters. If they come out in favor of something pro-lesbian, then the trans people will go ballistically crazy...and vice versa. The only safe thing they can all agree on is Trump bad. When Trump is gone, they’ll focus on the next GOP presidential candidate. In a hypothetical world where, say, Hillary Clinton became the GOP candidate, she’d be painted just like Trump and hated just as much. Because hatred of the GOP point man is all they’ve got.
It may be more accurate to say, that is all they wish to show. They do have a number of capable allies that are glad to, as near as possible, work quietly behind the scenes,
That is to say, allies such as the American Left actively supported by the major communist nations around the globe, and a pervasive "death to the Great Satan" religion that is firmly ensconced within our country and hiding behind our lst Amendment.
Add to that a world class MSM bent on misinforming and confusing the voting public while eager to publish whatever anti-MAGA perspectives can be found.
So long as "they" focus our efforts on protecting our "front man", the more easily their broader effort can continue to make advances.
Arresting political opponents is the plan