The he in verse 27 has to refer back to its nearest antecedant which is the prince of the people who shall come and destroy the sanctuary. This is the antichirst (one of his many names).
The antecedent of prince in verse 26 is Messiah the Prince in verse 25. Check with any
competent non-modernist non-dispensational non-futurist grammarian.
One who can correctly spell "antecedant".
Messiah was the prince in supreme command and control of the Roman armies, who were His people to accomplish His purposes of judgment and destruction upon the unbelieving nation of Israel.
many other people are also called prince in SCriptures!
Antichrist isn't one of them.
Context, context, grammar grammar
You have just unwittingly described one of the most fundamental reasons for modernist dispensational futurism's many egregious misinterpretations of the Word of God.
Context is
subjective in nature.
Grammar, by contrast, encapsulates the
objective rules and disciplines which govern every developed language.
Context cannot be determined with maximum certainty until the
objective rules and disciplines of grammar are
first applied to maximize clarity and comprehensibility.
Thus, your "Context, context, grammar grammar" is an erroneous reversal of the proper hierarchy.
"Grammar, grammar, context, context" is the hierarchy which must be followed, but which modernist dispensational futurism denies and rejects.
Resulting, predictably, in the interpretive chaos which it attempts to impose upon Daniel 9.