Running in such a prominent campaign would probably make your life suck. Pelosi’s seasoned team would probably go through your entire life with a fine-toothed comb and spin anything remotely negative about you to make it seem like you were a serial killer. The Republicans, meanwhile, might throw money into supporting you without caring if you wanted their “help” just to make Pelosi’s life hell.
There are probably already real challengers who actually want the job who you could support instead. If you donated to them and volunteered for them, they might make enough noise to at least get some headlines. And, you wouldn’t have to stick your own neck out.