Yichusdik, Mount Herzl is a Zionist military cemetery. Zionists fight in the Zionist army to promote or defend Zionism, not necessarily to save Jewish lives. In fact, sometimes, they fight knowing that they will be sacrificing Jewish lives, CH”V, whether for political or other considerations (more land, etc.).
Zionism, as we know, is anti-Jewish to the core, attempting to remake the Torah-based Jewish people into a new gentile Nation-State-based Hebrew people whose ancestors happened to have been Jewish. The Zionist army is obviously NOT a place of “kedusha”, in the Torah’s (i.e. non-Zionist) usage of the word.
So your characterization of those on Mount Herzl as “kedoshim” and “gave their lives to save Jews” seems “off”.
As well, your claim that visiting Mount Herzl could lead to Ahavas Yisrael is also strange. Would visiting a cemetery in the United States do the same? If not, then why would visiting one in Israel be any different?