But federal government funded and controlled healthcare is currently about 67% of national healthcare, leaving private insurance at about 33%. So how will wringing "ridiculous deductibles and premiums to the for-profit insurance companies" of a small percent of national healthcare result in enough funding for Medicare-for-all. The math doesn't add up unless income and payroll taxes are increased significantly.

And remember not all private insurance is for profit, Kaiser-Permante and other private providers are non-profit.