After debating about it for years - I know it is a pest and pervasive. Despite knowing this, I planted this morning glory anyway and it is the bane of my existence. I am now forced to spend a lot of time hacking at it to keep it under control. It wraps around my roses, my orange tree - and is trying to take control of my bee garden as well.
Still, the flowers are beautiful.
I too had a problem with squirrels, birds - and especially tree rats. After I got my latest kitty - she's a champion ratter - all those problems went away. I just wish she wouldn't drag the rats into the house after she's taken care of them. I got pomegranates last year for the first time in years. She's worth her weight in catnip.
Try some American bittersweet vines(scandens). They will take on those pampered plants and tackle any sized tree.
I have n 80 foot tree in my backyard and the vine is halfway up. They will randomly seed all areas around the house, and if like me, you like them , they will overwhelm just about any other plants.
If you, or your friends are birders, you may not like that the bittersweet vines berries are not as nutritious for birds, as the berries on the plants the bittersweet will wipe out- also people should avoid eating berries from this vine as they are toxic to people.-Tom Some people like them, most gardeners don't. -Tom
Diane Ott Whaley at Seed Savers trains hers up the sunny side of the barn on wires. Of course, 'Grandpa Ott's Morning Glory' was what started her whole enterprise, so it needs to be on display.

Ha!
A little morning glory goes a long ways, don’t it?