UBI is not about working on any hobby you want. It’s about redistributing wealth so that people can negotiate for more of the pie since the current system relies on using the cumulative wealth of one’s ancestors to determine their bargaining power.
At least you're candid that it's about taking money from people against their will. Most advocates couch UBI in terms like unleashing individual creativity and things like that.
I’m also candid about my current lifestyle being based on taking things from people against their will.
Their will probably was not to pick strawberries in a foreign nation or clean beers spilled surfaces at 11pm or not being able to breastfeed their infant because they need to go slap hamburgers together for $15 an hour.
I assume not all of those people willingly got drunk and high and got caught engaging in crime in their teens and 20s and willingly threw away their economic opportunities.