That sounds so frustrating! Lots of inconsiderate dog owners out there. I don’t know if this is a thing where you are, but we have a thing where a yellow collar or yellow ribbon indicates a dog who needs space. Now that may not actually be true for your dogs but it might encourage some more clued-up dog owners to give you a wider berth. Doesn’t solve the overall thing you were asking about but might help a bit with dog related issues.
ETA: ‘Please can you help me to…’ would work better for this as well.
This isn’t necessarily the case - they have a wild variety of coat colours and markings, ear floppiness is variable. They tend to have slightly wider snoots than their wild cousins.
This probably is still a wild one though.
Source: lived with someone who kept them!