There's a point about this bill everybody seems to have missed here. This bill, as introduced by Cardin and Van H into Congress where it's DoA, is a product of the collective mind of the MD Democratic Party leadership. You can bet an almost exact clone of this will be introduced into MGA this session, and almost certainly passed.
MD has been the D's political proving ground for a lot of bad legislation over the past few of decades that they eventually want to push in other states and nationwide, and this bill will be another shining example.
More realistically, keep an eye on the axes of gungrabbing bullsh1t laws: CA; NYC; NJ; MD; and CT. Seems like the state D nabobs here and there trade infringements ideas and play "Hold my beer..." when they swap boilerplate for proposed laws.
So what to do? Dig up these half baked piece of crap proto bills; pick them apart to find the weak points; and mock the Hell out of them when we pound the pavement and holler in social media. In other words, ALINKSY THEM!