Genuine question, can you explain what's upsetting to you about it?
To "throw the baby out with the bathwater" is a common idiom in America, meaning roughly to discard something valuable along with other things that are inessential or undesirable.
I can't figure out any interpretation of the statement which is offensive, so I'm guessing there's something getting "lost in translation" between countries or cultures here that I'm hoping you can help me understand.
Because colonialism is not merely “inessential” nor “undesirable”. I mean, some hyper-nationalist or supremacist groups do feel proud of the colonial history, but if that’s not the case, the phrase just show the ignorance regarding the history of colonialism.
> I can't figure out any interpretation of the statement which is offensive, so I'm guessing there's something getting "lost in translation" between countries or cultures here that I'm hoping you can help me understand.
You can read that sentence as "you are trying to remove colonialism remains but you are kicking out us; we are just capitalists, not colonizers!" while they probably indeed are, or are seen as, colonizers as well.