You're missing the point. So-called "Jesus" is said be be interpreted the same as Joshua. Point being Eze 17-1:24 planting of the cedar branch post Babylon, Zech 6:9-13 crowning of Joshua called the "Branch," and the other prophecies of the "Branch" of David's reign on the earth; Jer 23:5-8, Jer 33:15-18 , and Eze 21:25-27.
Your point seems to be Jesus=Joshua=Branch but you ignore context. The references in Zechariah refer to tzemach-there is no definite article in the Hebrew, hence no THE BRANCH.
Furthermore, Zech 3:6-10 is directed toward Joshua who is told that the servant tzemach will be brought forth-clearly a reference to another individual other than Joshua.
6:13 says specifically that tzemach will build the Temple of Hashemand numerous verses identify Zerubavel as the one who builds it: zech 4:6-10,haggai 1:1-2, ezra 5:2 and 6:7
These verses are explicit and clear. The scripture you quoted including Isaiah 49 are vague and need a huge stretch of the imagination to attempt to link them with Jesus. An ordinary reading simply refers to the prophet Isiaiah as the one who admonishes Israel when Israel sins. The use of the term "servant" is used to refer to the prophet and to the nation of Israel. Just where do you see a specific unambiguous reference to Jesus in these verses?