I've never seen a pushchair anywhere but in the designated space, and definitely not in the bloody aisle. No idea what mad place you live in where people wheel their buggies up the aisle.
Yes wheelchair users have priority, and that was as much the bus drivers fault as the person with the buggy. I have to get the bus as I don't drive and twice I have gotten off the bus for a wheelchair user, (one time ended with me walking 3 miles home wearing a baby in a sling and a toddler in the pushchair. And the other time, a 25 minute wait in the rain in the dark for another bus)
Not gonna lie, as someone who always has a pushchair with me; I'm getting pretty sick of all the complaints of 'buggies on the pavements' 'buggies on the busses'. I am as considerate as I can be, and to be fair, when I am out, it's not the pushchair users that have bumped into me or taken up too much space or dawdled slowly. It's usually women in power suits on the phone powering through anyone and everyone, or women with gigantic handbags over their shoulders that they have no problem smacking into everyone with. Or groups of teenage school children standing around in large groups, blaring music and swearing loudly and being to blind to other people needing to use the bloody pavement.
Don't tar everyone with the same brush.
I'm sorry we are such an inconvenience to you, but I have places to go, and that requires a pushchair.