I would like to ask two questions.
1- Does anyone actually believe the mishna in Pirkei Avos “דֶּבֶר בָּא לָעוֹלָם עַל מִיתוֹת הָאֲמוּרוֹת בַּתּוֹרָה שֶׁלֹּא נִמְסְרוּ לְבֵית דִּין”
“Pestilence comes to the world for death penalties according to the Torah, but which but are not administered by Bais Din” ?
2- The only explicit death penalty I can find that Hashem says He specifically will administer is this:
כָּל־אַלְמָנָ֥ה וְיָת֖וֹם לֹ֥א תְעַנּֽוּן׃
You shall not ill-treat any widow or orphan.
אִם־עַנֵּ֥ה תְעַנֶּ֖ה אֹת֑וֹ כִּ֣י אִם־צָעֹ֤ק יִצְעַק֙ אֵלַ֔י שָׁמֹ֥עַ אֶשְׁמַ֖ע צַעֲקָתֽוֹ׃
If you do mistreat them, I will heed their outcry as soon as they cry out to Me,
וְחָרָ֣ה אַפִּ֔י וְהָרַגְתִּ֥י אֶתְכֶ֖ם בֶּחָ֑רֶב וְהָי֤וּ נְשֵׁיכֶם֙ אַלְמָנ֔וֹת וּבְנֵיכֶ֖ם יְתֹמִֽים׃
and My anger shall blaze forth and I will put you to death by the sword, and your own wives shall become widows and your children orphans.
It seems pretty clear to me this is the reason we have a worldwide pestilence. So what can we do about it?