Well, I thought it was obvious, but let me try:
First, I dont want it to sound like I am putting others down...
OK, You said that Jesus is the same always, and protestants say that, too. They, well most of them, have not made use of rituals and ceremonies in the way We (Catholics) do, but they have not also decreased in numbers. Young people in protestant sects, denominations, etc... are also going with the general trend of saying I am a Christian but only with their mouth. Morals are not followed, and officially, many of them dont enforce them... in fashion, speech, etc., etc.
There pews are not as full as they used to be. And, if their sermons focus on moral issues and what they SHOULD DO, such as not swearing, no contraception, no abortion, etc, etc, no homosexuality, no divorce, etc, the pews will be much emptier. And they will open new churches. Here around where I live now, there are many, many 'churches' or places of worship that are protestant almost 2 blocks away from each other, and I would guarantee that they do not believe the same thing, and that they were created because they either did not agree with each other, or, well, that's basically the main reason why new groups are created.
latinmass
Hate to say this, but if you substituted the word "catholic" for "protestant," your statement above would still be true, would it not?