Yes. Yes they are.
exhales huge cloud of Grape & Strawberry Candy flavour vapour
Very few adult vapers want to use tobacco flavours, most people think thats what they'll vape when they give up the fags and they try it for a short while and go off it pretty rapidly in favour of the sweet/fruit/candy/cake flavours.
To answer a few other points, I forget who made them:
'Im allergic to the flavourings'
you're allergic to all the flavours? Really, every single one? Wow. Because each flavour has different ingredients, all of which originate in the food industry, you must really struggle to eat anything.
Possibly you're allergic to one of the two base carriers in vapes, Propylene glycol and vegetable glycerin - both are safe and common food additives (and are found in many more products beyond food).
It's disgusting breathing in what someone else has breathed out
I can't really help you there - stop breathing in public places, invest in a plastic bubble to live in, wear a filtration mask and breath only filtered air?
Everywhere you go, you're breathing in what someone else breathed out, and more and much worse. You're breathing in the gas that comes out of peoples arses (and cat farts, dog farts, cow farts... so many farts) the exhaust fumes from yours and other peoples cars, planes, helicopters, boats and trains. Any time you're stuck in a room with other humans you're breathing in some of what they breathed out. There is no escape from this.
Vapers do not cause you to breath in more of this disgusting stuff, they just let you see that little portion that you're breathing in. If everything we churn out into our atmosphere came with a neat coloured cloud so we could see it... welllll.. ew.
It's worse than cigarette smoke
No. It isn't. Public Health Englands study into vaping and examination of multiple studies showed that for the secondary inhaler, ie you judgey grumpy non-vapers - it is absolutely, categorically, better than cigarette smoke.
The jury is out on whether its 100% safe for the primary user, me, the common, unclassy, disgusting vaper - but thats fine, we are well aware of that. It is still safer than smoking.