I will mention. Ocean Cleanup has a 55 million Euro budget. Precious Plastic is being criticized for having squandered a 100k donation. That 550 times less.

Ocean Cleanup claims to have removed 21,000 metric tons of plastic in its existence.

If we assume linear growth in budget, that's $330M Euro / 21k ton = 15,000 Euro per ton of garbage.

About 10 million tons of plastic end up in the ocean each year, so over their history, they've cleaned up 0.2% of the annual input.

I can't really comment if any of that good or bad, but I thought numbers (even if squishy estimates) would be helpful to inform the discussion.