Well for starters, you're stat of 95% is questionable....maybe if you meant that to be catholics that would be more accurate.
In this chapter Jesus sets the stage for believing in Him in v27-29.
In v33 He notes He is the bread which has come down from Heaven....in v34 the Jews tell Him to "always give us this bread", to which he replies: "I am the bread of life; he who comes to Me will not hunger, and he who believes in Me will never thirst.
He goes on to repeat this the need for belief in Him in v40 "For this is the will of My Father, that everyone who beholds the Son and believes in Him will have eternal life, and I Myself will raise him up on the last day."
The Jews still grumble and Jesus again notes in v47-51 that one acquires the Bread of Life by belief in Him. "Truly, truly, I say to you, he who believes has eternal life. 48“I am the bread of life. 49“Your fathers ate the manna in the wilderness, and they died. 50“This is the bread which comes down out of heaven, so that one may eat of it and not die. 51"I am the living bread that came down out of heaven; if anyone eats of this bread, he will live forever; and the bread also which I will give for the life of the world is My flesh.”
Everywhere in the NT one comes to Christ through belief in Him.
Jesus has equated the eating and drinking with belief.
There is nothing in the text that remotely suggests the bread and wine "transform" into flesh and blood. If so, the catholic would be able to actually taste the flesh and blood if they want to hold to a literal translation.
Have you actually tasted the flesh and blood during the Eucharist?
Again, the drinking/eating of blood was prohibited and Jesus would not have them break the very Law He came to fulfill.
Let's also recall who the author of this text is....John. The very one who wrote John 3:16.
John uses several vivid descriptions of Jesus to illustrate the principles of Heaven in his gospel. These are things the people of the time would relate to.
John notes He is the door of the sheep. Is He a literal door with framing and studs with door knobs that we walk through? Of course not.
John also notes He is the Good Shepherd and that we are sheep. To take the catholic position on this....are you a sheep that walks around on four legs and goes baaaa....baaaa?
When Jesus said He was the bread of life....was He an actual literal physical loaf of bread that had been prepared in an oven and was sliced for consumption? Of course not.
This is why I say you must read John 6 in context. If you do so with an open mind you will see that one comes to Christ through faith.
Peter acknowledged this when Jesus asked the 12 if they wanted to go away also in John 6:68-69:
Simon Peter answered Him, “Lord, to whom shall we go? You have words of eternal life. 69“We have believed and have come to know that You are the Holy One of God.”
If He was speaking figuratively then why did John 6:66 take place? People don’t usually leave when someone speak figuratively.