They don't behave like a political party any more. It's not just the business of politics as usual and a generational shift, it's something different. I've been trying to coin a term for this internal takeover - I think nihilocracy, or nihilocratic populism, is the best I've come up with.
The party as a whole is uninterested in governing beyond seeking revenge and satisfying the charismatic eschatological movement that drives them. The leaders don't believe what they preach, they don't have policy goals besides "destroy what we hate", they don't have any conventional engagement with government beyond using it towards their own ends.
"Long term strategy" is a joke in this context. They're angry, they mobilize their supporters by promising revenge on a world that seems to be defying traditional structures and changing too fast. As with many reactionary movements aligned more by being "against" than "for", there's been little thought for what happens after the enemy has been defeated, and it's likely they'll continue seeking out new enemies until the movement dies from infighting or is ousted from power.