I don't know that some deranged psycho who feels empowered to hurl insults is terrorism. 
The Portland incident ended in tragedy. 
I do believe that Chump has emboldened bigotry and that there will continue to be incidents such as this. Some will lead to violence, some will result in death. Chump doesn't give a rip about some little incident on a commuter train in Portland. He's got bigger fish to fry - like campaigning for reelection and shuffling his minions around.