There might be other sleazy/douchy/aggressive/be-ashamed emails you receive but this looks fine. That reads like a relatively friendly email, standard cold-email approach. It targetted and I personally (or rather as a business) would have no issue receiving it.

You're objecting to receiving a personalized email from a startup team that is griding to bring a product to market? This email is well written and polite, including praise for competitor.

And you'd like to shame them. Shame on you!

What do you object to about this email? It just seems like a standard friendly cold email.