The OP obviously know the truth that Bitcoin and Ripple are not supposed to be compared yet he went ahead and created this post and that makes me to ask, what exactly is the basis for this post? Bitcoin is the pioneer and a decentralized coin whereas Ripple is centralized and even regarded as a shitcoin by the OP. Sincerely, there is no basis for comparing Bitcoin to Ripple unless the OP is looking at the surrounding XRP.
It is possible that @OP wanted to highlight the difference between a decentralized cryptocurrency (Bitcoin) and a centralized cryptocurrency (XRP). To establish trust, the degree of difference, and the reason one should not fall to some "fraudulent" system, one needs to highlight the legit and dependable features and compare them to the "fraudulent" one.
Newcomers will never see the difference unless someone explains it to them. Rather than saying they are different and should not be compared, why not be more observant and expose why one should not be swayed with this "fraudulent" cryptocurrency.
I agree on this, Ripple is very much centralized to the extent where investors should be afraid of their investment, the developers created Ripple and gave it a general token supply of 100 billion tokens, i don't know how people still want to invest into a project that the developers can easily manipulate, things we don't see in Bitcoin with our 21 million supply and decentralized nature is enough outreach for investors to take accumulating process seriously without fear of losing money.
According to CMC, there are 58 billion XRP coins in circulation compared to 19.86 million Bitcoin in circulation. I am not sure whether more XRP coins will join the already coins in circulation or not but one thing is clear that there is already a huge supply of XRP coins in circulation. XRP may be a good Alt like Eth or Tether as it's been among top 5 Alts on CMC for many years now but it's certainly not comparable with Bitcoin because of various reasons like decentralisation, coins in circulation and security.
It is obvious that there will be more and more XRP to join the circulation since the developer has a scheduled monthly auto release of XRP. It was 100% premined and most of these coins are under the developer's custody.