Do you think Tondaradippodi was opposed to the caste system?
Yes, Tondaradippodi was opposed to the rigid attitudes of the caste system. Historians suggest that the Alvars and Nayanars initiated a movement of protest against the caste system and the dominance of Brahmanas, or at least attempted to reform it.
In his composition, Tondaradippodi writes that Vishnu prefers those "servants" who express love for his feet, even if they are born as "outcastes", more than the Chaturvedins (Brahmanas) who are strangers to his service. This implies that devotion to God was more valuable than high caste status.
This opposition is further corroborated by the fact that bhaktas hailed from diverse social backgrounds, ranging from Brahmanas to artisans and those considered "untouchable".
Explanation
The answer is derived from Section 2.2 'Attitudes towards caste' and the specific excerpt provided. The text explicitly mentions that historians view the Alvars' movement as a protest against the caste system. Tondaradippodi's verse is used as primary evidence, showing a reversal of traditional hierarchy where an 'outcaste' devotee is valued more than a high-caste non-devotee. The context about the diverse backgrounds of the bhaktas supports the argument that the movement challenged caste norms.