Not seen the clip as a whole (I tend not to run embedded videos when I can help it, for a number of reasons) but I see the freeze-frame placeholder image.
Insofar as "kids dressed as soldiers", I'm less condemnational about. I remember dressing as a pirate[1]when I was 9ish. I don't think either myself or my parents[2] wished to force anyone to walk the plank. It's no more (or less) reprehensible than those drone-shot footages of police vehicles or tealights or general groups of building residents being arranged into the giant Z-patterns in what has basically been made the equivalent of stepping out of your front door/leaning out of your window/standing on your balcony and performing the ritual ofclapping/bashing-pots-and-pans for the country's healthcare workers, every Thursday evening at 8PM or whenever. No doubt (from what we hear about what they hear) it's a 'laudible attempt to applaud those who are undertaking a good cause', and it's manipulation from above that has engineered the 'choice' to go for Z-marked armoured vehicles and kid-sized 'uniforms'. And we already have trouble with the ideas from the apex of the Russian Realpolitik; this neither dents nor embosses the form it already inhabits, to any great degree.
(The annual parading of military-themed displays is something that we expect of Russia, and other regimes of an authoritarian ilk, and do not forget the outrage when Biden's predecessor mooted the possibility of his very own military parade through the streets of D.C. after being inspired (IIRC) by some visit to NK/wherever, IIRC, in one of the many ways he seemed to be a sponge for Cult Of Personality performance-pieces.)
So I'm not outraged. Par for the course, and to solve just this one aspect is impossible, it needs all kinds of detadicalisation to be applied, de-brainwash the state-media-fed population and give them the ability to both access and believe true-and-credible news, to give them the opportunity to appreciate a less filtered and less one-sided viewpoint and make it possible to decide for themselves whether they still supported the fascistic 'denazification' or not.
Then I'll be happy to condemn those who display the demi-Hakenkreuz prominently, get their children to ride replica tanks, etc. Just as any attempt to traditionally celebrate Empire Day in modern-day Britain[3] should be frowned upon.
[1] Not consistently. It was for a particular special occasion. Honest, ye lubbers! Aarrrrgh!
[2] Who I'm fairly sure only assisted me in my characterisation, and did not force the theme upon me for their (or their political masters'!) own gratification.
[3] With schoolchildren parading tableaux vivants of the various dependant nations, maybe here a trailer of stereotypical Canadian gold-panners and Mounties (meh...), but there a float of spear-holding, grass-skirted children in blackface/bodypaint depicting one or other of the African territories. Back when that was a thing, it wasn't a conscious insult... probably considered to be honouring the enlightened former-benighted 'savages', and very few of the adults who organised this would have known much more than their charges about the oppressions exerted upon traditional civilisations in an attempt to (re)civilise them to a more recognisable template. No, they couldn't have realistically known better. But once they could, then it's something to condemn them for, to their faces or otherwise.