Why should Buddhists worship Hindu Devatas?

Buddhist Tripitaka scriptures were written about 200 years after Buddha's parinirvana. These scriptures now form the bed rock of Theravada Buddhism. A perusal of these scriptures shows a clear tendency to make fun of Hindu Devatas. Great Brahma is in fact shown as a humbug and a fool as is clear from Kevatta Sutta in Digha Nikaya which is given below.

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