You're trying very hard to make reservations about this change seem unreasonable.
No, I've been asking for the reasoning behind any reservations. The quality of those reasons stands or falls on its own merits (mostly "falls" so far, IMO).
The bylaw says that these groups won't invite, "speakers who have expressed and continued to hold views in support of...the apartheid state of Israel."
Right. It sounds reasonable to me to oppose an apartheid regime, and I think this is a reasonable description of the current situation.
Furthermore, the commentary of these groups on the rationale for this bylaw is a criticism of Israel from its very founding as a country. And the original meaning of "Zionism" was support for the founding of Israel as a state.
So it's isn't at all unreasonable or unrealistic to ask...is this bylaw saying that anyone who supports the existence of the state of Israel can't speak? If it does, it excludes the vast majority of Jewish people. Which it isn't unreasonable to say...is deeply problematic.
Well, let's look at the actual text:
Furthermore, in the interest of protecting the safety and welfare of Palestinian students on campus, (insert organization name) will not invite speakers that have expressed and continue to hold views or host/sponsor/promote events in support of Zionism, the apartheid state of Israel, and the occupation of Palestine.
Maybe before asking what "Zionism" means, we should ask what "and" means... specifically the one I've bolded.
In particular, we could ask how its meaning would be different from "or" in this context.
The bylaw even goes on to speak to implementation:
While Law Students Justice for Palestine respects the approach of each individual organization in their implementation of this provision, suggested strategies can include publicly stipulating the organization's position of anti-racism and anti-settler colonialism to speakers, ensuring that proposals for speakers emphasize the organization's desire for equality and inclusion, and informing speakers of the event's goals and mission values.
Can you not understand the concern?
I think it's important to be watchful for anti-semitism, but I think that these claims that the bylaws would exclude "the vast majority of Jewish students" are misrepresenting what's going on here.
This is not some purge of Jewish members from student clubs. This is clubs saying to prospective guest speakers, "before we book you for this event, you should know that our club supports Palestinians' rights? Do you support them too?"