It is the same language although there were localization differences. Maybe if anyone prefers it can be referred to a general, non confrontational alt term such as 'bahasa'. But it doesnt take away the fact that it is still the same language family. Look at it this way. If you call a language Australian or American or Canadian just because you hated the Brits for eg. that actually just silly.

Also what cultural appropriation when most Malays and technical Malays like Zahid Hamidi for eg. memang can trace their root to Indonesia pun.

It is similar but not the same. Australian or American is a slang but still English as standard. There are no standard for bahasa. In order it to be an official language, you need to choose one.

Which ties back to my original question, what would Indon say when you with only 32mil speaker want to use your bm as standard instead of b. Indon which have 280 million speaker? Indons are very patriotic too.

It's just silliness and would go no where while offending our neighbours.

I feel not really. Language shouldn't be butchered. Simplified, yes. Depending on circumstance.

This is like lowering quality, then wanna promote to world 

It is similar but not the same. Australian or American is a slang but still English as standard. There are no standard for bahasa. In order it to be an official language, you need to choose one.

Which ties back to my original question, what would Indon say when you with only 32mil speaker want to use your bm as standard instead of b. Indon which have 280 million speaker? Indons are very patriotic too.

It's just silliness and would go no where while offending our neighbours.

It is similar but not the same. Australian or American is a slang but still English as standard. There are no standard for bahasa. In order it to be an official language, you need to choose one.

Which ties back to my original question, what would Indon say when you with only 32mil speaker want to use your bm as standard instead of b. Indon which have 280 million speaker? Indons are very patriotic too.

It's just silliness and would go no where while offending our neighbours.

It’s not slang!
It’s accent!

Got minor difference. Like spelling and some words commonly used like boot/trunk and bonnet/hood or pants/trousers lift/ elevator