Why didn't people who are for the 2nd Amendment the way the NRA interprets it get angry when California passed the Mulford Act?

The Mulford Act was a 1967 California bill that repealed a law allowing public carrying of loaded firearms. Named after Republican assemblyman Don Mulford, the bill was crafted in response to members of the Black Panther Party who were conducting armed patrols of Oakland neighborhoods while they were conducting what would later be termed copwatching. They garnered national attention after the Black Panthers marched bearing arms upon the California State Capitol to protest the bill.

Both Republicans and Democrats in California supported increased gun control. Governor Ronald Reagan was present when the protesters arrived and later commented that he saw "no reason why on the street today a citizen should be carrying loaded weapons" and that guns were a "ridiculous way to solve problems that have to be solved among people of good will." In a later press conference, Reagan added that the Mulford Act "would work no hardship on the honest citizen."

The bill was signed by Reagan and became California penal code 25850 and 171c https://en.wikipedia.org/wiki/Mulford_Act