You can, because the definition of gambling is loose. Magic The Gathering is gambling. You by a pack and hope you get a valuable card, no different than buying a lottery ticket and hope you win. Pokemon Go is also gambling. You pay to hatch eggs and hope you get a rare pokemon. I'm pretty confident the people who made these games don't consider their design to be evil or wrong. In fact, I'm sure they see themselves has having provided millions of people with fun entertainment.
I'd be slightly more specific with those assertions, and point them at the gambling mechanics themselves, although I do agree. The games are not inseparable from those mechanics, and are quite fun on their own.
I just got into magic, and am sadly watching my more gambling prone friends fall down that rabit hole. They keep asking me what cards I've bought or whatever and the answer is none, aside from a starter deck. I have literally zero interest in engaging with any game in that way, despite enjoying the booster pack gamble as kid with pokemon.
If I were to gamble, I'd much rather throw a couple bucks on who wins a game rather than what cards I'll get.
I think Richard Garfield would not be a fan of the "gambling" or "speculation" parts of MTG. To the extent that they exist I do not think they contribute to the quality of the games or the amount of entertainment.
If we end up losing Magic The Gathering when we ban gambling, I will somehow find a way to sleep at night. Yes, all of these card games that are targeted at kids and young people are somewhat exploitative and are a pipeline into more conventional gambling games + whatever esoteric online pay-to-play stuff comes next.