As an enthusiast and a professional, I care more about FF market more. I could care less about sales numbers for entry camera. Canon EOS RP will sell well but it doesn't mean much for me.
So we've gone from a general 'Canon is suffering because of all the competition' to 'I am talking about the non-entry level FF market because that's what I care about'.
Canon sold more FF ILCs than any other manufacturer in 2018. Given that fact, let me anticipate your next goalpost move – you
really only care about FF mirrorless. In fact, you have already gone there:
Here is some data.
https://nikonrumors.com/2019/02/04/...-in-japan-sony-66-4-canon-17-5-nikon-16.aspx/
The sales for December 2018 are - Sony: 66.4%, Canon: 17.5%, Nikon: 16%.
Consider this: prior to September, 2018 Sony had essentially 100% of the FF MILC market, since the only competition in that sub-segment was Leica, and Leica doesn't really sell enough cameras to be even a blip on global market figures. You are arguing that 'all this competition is hurting Canon', but the data you link to support that claim tell a very different story.
Sony lost 44% of the Japanese FF MILC market in just 4 months. How can you believe that supports the argument that Canon is hurting from competition? Sorry but the lack of logical comprehension inherent in that suggestion is rather staggering.
Consider...back in 2012 Sony was essentially the only maker of ASP-C MILCs (the other brands were m4/3), and there were no mainstream FF MILCs. Canon launched the EOS M, critics and forum dwellers hated it. Sony pivoted to emphasize FF MILCs, which was a wise move on their part since the EOS M line has now become the best-selling APS-C MILC line. But now, Canon and Nikon have entered the FF MILC market, and Sony is hemorrhaging market share, although they remain the leader in that sub-segment (for now). Time will tell if they can hold onto that lead once Canon and Nikon have had FF MILC models on the market for a full year.