Canada is very diverse and as of the latest census probably only 65% white

What data are you using to make that conclusion?

These graphs seems to indicate that, although I'd be more certain saying 70% instead.

23.9% are new immigrants + 17.7% 2nd generation = 40% of total population are recent immigrants. Obviously not all new and 2nd generation immigrants are non-White but probably 75% are, which would make this value 30%, and the White population 70%.

Change in immigration source area. If we got back 2 generations, in 1971, non-White immigration was about 10% of the total, now it's 75%, and recent immigration from US and Britain is hard to determine the racial classification since these are also proposition nations. Even checking the "Canadian" box as their ethnicity makes this unclear.

2016 census has Europeans as 72.9% of total population.

Mortality data. Says 267,213 died in 2016. So if we go with 1/4 million deaths per year and

In 2016, there were more male deaths (135,772) than female deaths (131,441) (Figure 2).

For males, three-quarters (75%) of deaths occurred at age 65 or older, compared with 84% for females.

So 75% of 135,722 is 101,791, and 84% of 131,441 is 110,410, sum is 212,201. Demographically most people over 65 in Canada are probably White but let's just say it's 80%. New value is 169,760. Over 5 years since 2016 this is 848,804 elderly White Canadians that have passed away from the census total of 35,151,728. As a percent this is 2.4%.

If we go by visible minority population, 2016 census listed 26,785,480 Canadians as not a visible minority. Minus the 848k deaths and add at least 270k from 2016, 300k in 2017 (est.), 320k from 2018 (2019 value less 6%), and 341,180 in 2019 and 2020, this is 1.272M immigrants since 2016. So non-visible minority Canadians now number 25,936,676, while visible minorities equal the difference from the 2016 census of 35,151,728 + 1.272M from immigration, which is 10,487,052 or 28% of that sum, putting White Canadians at about 72%.

In 2019, Canada achieved its highest level of permanent resident admissions in recent history with 341,180 admissions,Footnote26 which is 6.3% higher than in 2018.

This article indicates that the visible minority population may be underestimated

With new targets of 400k immigrants per year, combined with the upcoming boomer die-off, there will be a rapid demographic change.

https://www.cicnews.com/2020/10/canada-to-release-2021-2023-immigration-levels-plan-1016133.html

If we got by language, then in 2016 22.94% spoke a language that wasn't English or French which is in line with the visible minority population estimates.

So the 65% number might be a bit low, but it's definitely in the ball park, especially with the number of mixed Canadians and the ambiguity of multiple responses. I would say it's definitely at or approaching at least 70% now.