Sanders' desire for open primaries is an extremely thinly veiled attempt to disenfranchise black voters. Black voters overwhelmingly register as Democrats. Their are virtually no blacks registered as independents. They would be by far the group to lose the most influence in the process should open primaries become uniform. Who would would have guessed the CBC would be opposed to this?
Except nobody is actually taking away their right to vote so...
No, just making it worth less.
By that logic, as a white person, I guess I'm disenfranchising black people by voting. Maybe I'll sit this election out so that black people can become a higher percentage of the electorate.
That (sarcastically) said, I also support getting rid of caucuses, which would be more democratic, and would probably help enfranchise more black people. I think Sanders is hypocritical for not demanding that reform.