The answer is simple. In the exact same way that these three foods and many others are believed to be culturally connected to a certain people group and tradition, Yeshua/Jesus - a nice Jewish man born in a Jewish town named Bethlehem, born to Jewish parents Yosef (Joseph) and Miriam (Mary), who lived His life according to Biblical/Jewish law and conventions, and who died in the capitol city of Israel, Jerusalem - has been largely removed from His real Jewish culture, and over the centuries became a Hellenized Christian.
I know that many people reading this may still at this point be wondering, "So what? I still don’t know what difference it makes." After all, you can enjoy a bagel in a kosher deli without understanding that the first bagels we made by Italians. You can eat a bowl of chow mein noodles with chopsticks without concern that it was first eaten in America and not in China. We also know the long piece of pasta is no less delicious just because the first ones to slurp pasta were not in Italy.
While there is may be no critical impact caused by the lost cultural roots of foods such as spaghetti, bagels, and chow mein, the impact caused by removing Yeshua from His cultural roots is more than simple cultural appropriation. The issue isn’t just that Yeshua was Jewish. The problem caused by the removal of Yeshua from Judaism is much greater than cultural awareness.
When we learn about Yeshua outside of the context of the Old Testament and the Nation Israel, we may see Him as our Messiah, but we don't know and cannot understand why He is the Messiah and why only He can be the Messiah. Outside of the full context that Yeshua was born into, we cannot understand the meaning of verses such as Galatians 4:4,
But when the fullness of time came, God sent out His Son, born of a woman and born under law—(TLV)
Once removed from historical Biblical context, it is impossible for someone to understand what is meant by “fullness of time,” “God sent out His son,” or “born under law”. So we are left simply with the understanding of His human birth, which in truth alone doesn’t qualify Him to be the Messiah.
Without the knowledge that starts in Genesis chapter 1:3,
Then God said, “Let there be light!” and there was light, (TLV) which is spoken before the creation of the sun, stars and other planets, it is impossible to understand John 8:12,
Yeshua spoke to them again, saying, “I am the light of the world. The one who follows Me will no longer walk in darkness, but will have the light of life.” (TLV)
While Yeshua’s death, burial and resurrection can only be understood on a surface level without being attached to their context beginning with Genesis 1:14,
Then God said, “Let lights in the expanse of the sky be for separating the day from the night. They will be for signs and for seasons and for days and years, the word “seasons” in verse 14 is the Hebrew word Moedim, which means “appointed times.” There were biblical reasons that Yeshua died on Passover, was buried before the Sabbath, and rose again on Bikkurim, or the Firstfruits of the barley harvest. These reasons were established from the very first words of the Bible and continue throughout the Tanakh, or Old Testament texts.
While it may not make any difference if someone goes their whole life thinking that bagels are Jewish, pasta is Italian and chow mein is Chinese, it makes a huge difference if a believer in Yeshua doesn’t know that Jesus was/is a Jew, because the very foundation of what they believe is resting on that truth. After all, remember what Yeshua said on the last great day of the Feast in John 7:38,
38Whoever believes in Me, as the Scripture says, ‘out of his innermost being will flow rivers of living water.’”
In order to have rivers of living water flow out of our innermost being, we must believe in Him as the Scriptures said, remembering that the only Scriptures in existence when those words were spoken were the books of the Old Testament.