Just to be clear, would you consider it an optimal and acceptable thing where people can arbitrarily obstruct another person’s robot on the sidewalk whenever they want for as long as they want for whatever reason they want?

Yes. Robots are not people.

A robot may not be a person but it is a person's property.

It doesn't seem right to interfere with the reasonable use of someone else's property.

I realize it’s just nitpicking but: that robot it’s a corporation’s property, not a person’s.