Reading public.
Think of "gruff".
Now think of everything you know of Rogen.
...
If people want Rogen because he's Jewish...? Fine.
They want him cuz he is funny and MCU Ben will likely have a lot of laugh lines cuz... MCU? FINE.
But can we stop attributing aspects to our fan casts that have zero basis in reality?
Rogen doesn't now nor ever has exuded:
Gruffness
Toughness
Old School machismo
I'll add:
In no way shape or form does he sound like a New Yorker, Jewish or otherwise.
We all have our choices. I get it. I can't deny a person's druthers but the issue is abject projection based on NOTHING apparent in the performer or what they have done in the past.
Rogen isn't gruff or intimidating or "classically manly".
If people want him cuz he is Jewish or funny... Those are literally inarguable to me. It is EVERYTHING else that makes no sense.
I can't speak for everyone, but these are my typical pros for Seth Rogen as Grimm. It's numbered, but not necessarily in any order:
1. Extensive voicework on his resume, family-friendly fare, including with Disney
2. Strong comedic performer & good dramatic work--even in a stoner comedy or the like, Rogen still turns in a good performance that audiences respond to, IMO.
3. If he's not starring, Rogen plays the supporting/best friend role well--see
50/50 or
Funny People or
Jobs to a certain extent. He'd be ride or die for MCU's Reed. Even if he doesn't always understand what's going on Stretch's noggin
4. Rogen's not ripped, but he's shown willingness/ability to get in shape for roles in the past--and we've seen similar comedians getting in incredible shape after joining with Marvel. Regardless, the role would be largely mocap and not necessitate that outside of potential flashbacks / origin sequence.
5. I don't typically think of Grimm as old school machismo--he's definitely the layman of the group and 'yeah yeahs' Reed when he gets on about his science jargon, but certainly within Rogen's realm of capabilities to pull that off. I think Rogen can convincingly sit at a Yancy Street Bar with a pint and be invested in the Mets game. It's not gruff or tough, true, but it's the everyman.
Rogen's Grimm can still help Reed Richards navigate the 'real world' and protect him from the people who would put him down or call him a nerd--especially in college. Grimm's in the 'in crowd,' and brings Richards along whenever he's able to pull him from the lab.
Idk, sometimes I think of Ben Grimm as a lovable schlub, and think Seth Rogen could kind of embody that perfectly?