In Australia, where legal online sports betting is everywhere, it's hugely unpopular with everyone except the bookmakers, TV networks (for whom betting ads during sports broadcasts are the one remaining decent revenue stream), a relatively small group of gamblers (many of whom gamble enough for it to pose serious problems for them and their families), and the nominally socially-democratic politicians running the federal government (who were more than happy to ban social media for teens despite the evidence being ambiguous at best, but are amazingly reluctant to tackle this, despite the demonstrated harm).

Put the genie back in the bottle and ban online sports betting. If somebody wants to place a bet on sport, make them physically go to a betting shop or the racetrack.