Agreed. What other people do to prep is not my business. Good on 'em.
Timing is important in all things. Pull the trigger too early and you incur opportunity costs. Too late and you miss the chance. Not sure how prepping would have helped people in Ukraine who are under fire. Anyone with a bomb shelter would have a hard time defending it to ensure strangers don't barge in and cause over crowding and rapid loss of supplies. In that situation, where people are scrabbling for shelter and supplies, the owner of a shelter would need more than one person with guns and an ornery attitude to guard it.
Being a retiree, I would be loathe to fight to stock up my own supplies against young families with children. If everything really goes to hell, I've had a good run and would be willing to vacate the scene so the young may have the choice to survive in a ruined society/world or not.