Defeating Trump is an absolute necessity and should be our only priority between now and November. To paraphrase Churchill, though, defeating Trump will not be the end, or even the beginning of the end, but it might be the end of the beginning. Trump is not some charlatan tricking a mob of well-intentioned but ignorant rubes, he is the natural outcome and chosen representative of a mass movement, a significant fraction of the American populace, the Republican base.
Peace and justice will not be able to progress until this movement, this base, is eradicated and consigned to the dustbin of history.
No, I am not suggesting that they be rounded up and thrown in re-purposed immigrant cages or out-sourced to Putin as gulag-labor, exquisitely karmic though those options might be. I do think we need a broad-based social, cultural, and economic strategy to eliminate this cancer. It must be identified, mapped, and exposed for what it is, a movement founded on the conscious exploitation of evil impulses and pathological personalities. Government cannot do this, at least not if we want to avoid becoming the thing we fear. It can help though. Congress and the executive can, for example, examine the IRS status of religious quacks, pursue a policy of re-vitalizing organized labor, seek the repeal of Citizens United, pursue un-registered foreign agents, robustly prosecute corrupt local government and its enablers, and expose dark money networks.
There is much more, of course, but the main thing is to have conscious direction, a defined purpose, that millions can apply in their daily lives and activities.