Bob and Hamas
Bob doesn't seem to see much wrong with supporting Hamas, a virulently anti-semitic terrorist organization.
By that same logic, it wouldn't be bad to support the Klan. Now, not everyone who has ever supported the Klan has been racist (though the vast majority have), but everyone who has supported the Klan has at least demonstrated a tolerance of, if not an outright acceptance of, racism and terrorism, because they would not otherwise support the organization.
In the same way, not everyone who voices support of Hamas is an antisemite, but the vast majority are, and the rest tolerate if not accept bigotry and terrorism.
Time for Bob and others on the left to take a more sane position on Hamas.