Did Roger look at Luffy like his own?

[Warmmedown]

he said:
"Bear conviction under your flag!"
"If the endless dream guides your restless spirit, seize it! Raise your flag, and stand tall!"

I think these apply to Luffy

"unstoppable ideas are held deep in the heart of man"
Luffy is a man

Was his haki that strong, like Katakuri's?

 

[SSJ2]

Luffy isn't tall tho

 

[Warmmedown]