After your machines are destroyed you will be fighting machines or machines will extract and constantly optimize you. They will either exterminate you or make you busy enough not to have time for resistance. If you have something of value they will take it away. The best case scenario is to make you join the owners of the machines and keep you busy so that you don't have time to raise concerns about your 2nd class citizenship.
But the reality is more like the surprise of a bunch of submersible kill bots terrorising a coastal city and murdering people. Even in bot-first combat, at some point one side of bots wins either totally, allowing it to kill people indiscriminately or partially, which forces the team on the back foot to pivot to guerilla warfare and terror attacks, using robots.