This is all true - but does not address the theme of this thread or solve the problem of the extreme Asura activity at this time.
One of the main points is that the negative forces / Asuras are active by their own, but the positive forces / Devas / Suras must be asked to help from us and get active.
“Suras and asuras have quite a number of parallels, but in the end the suras always retain the upper hand, for they assure themselves of Visnu’s help. As it is said in the Bhagavad-Gita (18.78): “Wherever Krsna is present, there certainly are wealth, victory, power and morality.””
““Asuras seek refuge in insatiable lust, pride and false prestige, and are therefore in illusion. They are conspiring to unclean work and are attracted to the impermanent. They believe that satisfying the senses until the end of life is the greatest necessity of human civilization. Therefore, their worries have no end. Bound by hundreds of thousands of desires and by lust and anger, they secure money for sense gratification by illegal means.” (Bg 16.10-12)”
Vālmīki - Rāmāyaṇa, Vol. 4: Kiṣkindhā-kāṇḍa, Appendix 1.