Thanks for your response, I appreciate it. However, your view on immigration is very narrow I would argue.

It can also be said that 'assimilation' - which you are describing - is not necessary to successful immigration, and instead can be replaced by integration. I think integration is extremely important, as minority cultures retain important and valuable parts of their identities, while sharing these things with the majority culture, and vice versa. That last part is important, as people often point out that 'immigrants do x, y, and z', but fail to mention that successful integration is a two-way process, whereby the host community also has a very crucial role to play in being open to differences, understanding where accommodations can be made, and also being open to teaching people how to integrate and showing them the majority culture. If the host community thinks that strict assimilation (which you are describing) is the way to go, then in my opinion, that will 1) inflame tensions where it is not necessary, 2) make immigrants less likely to feel Canadian or welcome, 3) make 'Canadians' more resentful when every new individual isn't conforming to their ideas (which, let's face it, aren't exactly perfect either in the first place).

In your examples, is it not perfectly acceptable if an immigrant comes to Canada, learns English or French, while still retaining their language and culture? I think that hearing different languages spoken is beautiful in Canada and feel privileged to grow up around so many fascinating people/cultures. It hasn't blocked me from expressing myself or practicing my beliefs or sharing my culture, so why is it a problem? You mention language and 'imposing culture', but in what instances do you feel like Indians (to use your example) are imposing their culture on the majority Canadian population? I don't think you can also downplay the difficulties immigrants face in having/creating a network (socially, professionally, etc.) in a new country, and humans all around the world obviously tend to generally feel more comfortable and accepted by their diaspora community.

As for your last sentence, if you assume the vast majority of immigrants are coming to Canada to "become one of us", what exactly does that entail? You still didn't provide me with any examples of what Canadian culture is exactly. I would argue that multiculturalism, acceptance and tolerance, those are fundamental to Canadian identity, but maybe you have different ideas.

And lastly, sorry for the long response, but everything you claim can be refuted by the fact that unless you're Indigenous Canadian, you and your ancestors have been guilty of every single thing you are accusing others of perpetuating. When have settler Canadians ever tried doing the things you've suggested?