These were the people of Bakhmut in 2014 [1], after the events of Maidan in Kiev. Notice the Russian flag. It's unfortunate that the Ukrainian State hasn't allowed the people of the city to choose their own way so that it had to come to all this destruction, I agree with you on that.
As for the buildings, they will be re-built, look at today's Grozny.
It was that or the Odessa House of Trade Unions treatment for the local Russian population wanting not to depend on Kiev.
As I said, all this wouldn’t and shouldn’t have happened had the Ukrainians really believed in the principle of autonomy and of subsidiarity. Happily for them as soon as they’ll join us in the EU they’ll get right on to that.
As for the buildings, they will be re-built, look at today's Grozny.
[1] https://twitter.com/CheburekiMan/status/1660124734871453697/...