Neither.
Bitcoin is the king，
Assuming they have no idea about the cryptocurrency space in general, Bitcoin being "king" is meaningless.
Bitcoin is electronically protected or encrypted，
Not everyone knows what "encrypted" is.
Bitcoin may be a currency of the future.
Not super bad, but not a fan. Probably good enough if you can explain to them why.
With bitcoin, you have the future.
Sounds scammy.
If you don't buy it now, it will be the most regretful thing in 10 years.
Sounds scammy.
Maybe focus on explaining the things that Bitcoin fixes instead, rather than specifically pitching an investment like a salesman.
I feel the same as you. Slogan-style introduction of Bitcoin makes people doubt the reliability of Bitcoin.