I can hardly imagine an idea more ridiculous than "blasphemy". The G-d is not a psychologically immature human being easy to offend. Nothing a human might possibly say can change the state of G-d from perfect harmony to anything else.
That's a very idealized and personal definition of God. I suspect that the God that most religious people believe in is closer to how North Koreans think about Kim Il Sung.
Imagine a terribly disabled person, crippled physically and mentally, unable to carry a kilogram for a second or multiply 2x3, traumatised to the point of insanity, striuggling from dementia. Also imagine you are a world-famous olympic athlette with four doctorate degrees in diverse areas. What if the cripple would say an insult about you, would you feel anything but compassion? This is a rough approximation of the difference between any person and the G-d.
With your example about being insulted by someone so wretched, I agree - I would feel compassion but that's an emotional response based on my current personality. You do sometimes see very successful people being riled up by minor criticisms from nobodies and you do think "Why on Earth do they care?". Some people are just petty minded and cruel, even when there is no need.
I'm not a believer, but I must say the idea of a God capable of petty cruelties does at least seem to match how the world actually is vs a God who is both omnipotent and all loving.
That's possible because they are just humans. They have basically monkey brains on steroids and didn't have eternity to mature their wisdom.
Any being, no matter how advanced, can happen to find necessary what we would consider evil or unfortunate. But getting insulted and angry is a primitive animal reflex meant to help animals protect their social status among similarly primitive creatures, obviously not an attribute of G-d.
> I would feel compassion but that's an emotional response based on my current personality.
Have you had a chance to observe how does your personality mature? The more you experience, know and understand, the harder it becomes to make you angry, insecure or disbalance you in any other emotional way, isn't it? Who the heck we are to think we can affect G-d?
>Judaism considers some names of God so holy that, once written, they should not be erased: YHWH, Adonai, El ("God"), Elohim ("God," a plural noun), Shaddai ("Almighty"), and Tzevaot ("[of] Hosts"); some also include Ehyeh ("I Will Be"). Early authorities considered other Hebrew names mere epithets or descriptions of God, and wrote that they and names in other languages may be written and erased freely. Some moderns advise special care even in these cases, and many Orthodox Jews have adopted the chumras of writing "G-d" instead of "God" in English
IMO a little bit ironic considering the post contents.
There was this one time where god got so mad, he flooded the whole earth, killing everyone. He was upset because people weren't worshipping him enough. So basically like Stalin, but worse.