There are plenty of synonyms for "enmity" but somehow never quite enough. Here are some: hostility, animosity, antagonism, friction, antipathy, animus, acrimony, bitterness, rancor, resentment, aversion, ill feeling, bad feeling, ill will, bad blood, hatred, hate, loathing, odium; malice, spite, spitefulness, venom, malevolence.
It can be a powerfully destructive thing when a leader sows enmity among a group of his people, pitting them against their countrymen or their government. That is very much what Trudeau has done with his arrogant, "my way or the highway" proclamation that the Trans Mountain pipeline is going through, regardless of the opposition of the province affected.
There are a lot of us who are dead set against it. There are a lot of others, however, who may be indifferent to it, even somewhat in support of it, who he will also alienate by his highhanded arrogance. Nobody enjoys feeling subjugated. There aren't very many who will welcome British Columbia being pushed around, especially by forces thousands of miles distant.
Of course it's one thing to reap enmity by promising to push someone else around. The doing of the thing increases that enmity greatly, perhaps exponentially. The fight ends only when the opposition gives up and Trudeau will have to throw a lot more lifelong law-abiding citizens in jail and with each one that enmity will build.
All Junior can do from here on in is to make an already bad situation much worse.