You want to use the militia clause to justify military weapons, but reject the training, order, and discipline that were historically militia obligations.
Only to the extent that the opposition rejects "shall not be infringed".
Currently, there seems to be little hesitation to accept the presumption that currently in-vogue "regulation" is reasonable. Just because our rights have been historically abused does not mean it is acceptable.
Otherwise I could still be rounded up and sold down the river.