Why did God establish the New Covenant in a way that did not remove the Jewish objection from unmet Temple expectations?

In Christian theology, Jesus is said to establish the New Covenant and fulfill the Old Covenant rather than abolish it. My difficulty concerns a specific Temple-related messianic expectation. For example, Zechariah 6:12–13 says of "the Branch": “Thus says the LORD of hosts, ‘Behold, the man whose name is the Branch: for he shall branch out from his place, and he shall build the temple of the LORD. It is he who shall build the temple of the LORD and shall bear royal honor, and shall sit and rule on his throne.’” (ESV) From a Jewish perspective, this seems to envision a visible, physical Temple-building as part of messianic expectation. If a visible restoration of the Temple had accompanied Jesus’ mission, it seems to me that the Christian claim would have been easier for Jews to accept without appearing to abandon covenantal faithfulness. I understand that many Christian interpretations address this by pointing to spiritual fulfillment: Jesus’ body as the Temple (John 2:19–21) Believers as God’s Temple (1 Corinthians 3:16) The Church as a dwelling place for God (Ephesians 2:19–22) My difficulty is this: God could, in principle, have fulfilled the prophecy in a fully observable way — restoring the Temple for the Jewish people — while simultaneously revealing the spiritual significance Christians now see. Such a course of action would have preserved both the prophecy’s visibility and persuasiveness from a Jewish perspective, while still conveying the theological truth Christians attribute to the Temple. Instead, the fulfillment remains largely non-obvious to those expecting a physical Temple, leaving a strong basis for Jewish non-acceptance. Question: How do mainstream Christian traditions explain why God allowed Temple-related expectations such as Zechariah 6:12–13 to be fulfilled in a spiritualized, postponed, or otherwise non-obvious way, rather than in a visibly persuasive way that could have satisfied both Jewish physical expectations and Christian spiritual interpretation?