It is BJP's miscalculation.
He is not helping even a single bit and will dent your own voter core in 2027 UP elections.
The Dalit vote is up for grabs . Let's focus on UP. After having sided with the Congress for decades , they've shifted lock stock & barrel to the BSP foe decades. It's only in the last decade that they began shifting somewhat to the BJP.
This election they sided with the SP which is actually a party with a core base decidedly inimical to the interest of the Dalits. It also helps to note that this happened only after the demise of Mulayamwa. Had the Dalits voted for the SP in 2019 when it fought the general elections in collaboration with the BSP , the BJP would've been in deep trouble then itself.
The voting pattern of the Dalits confirm one fundamental point - that they're in search of a party after the BSP's fall from favour. They haven't yet zeroed in on any single party or coalition which is reflected in their voting patterns every election . It's as if they're waiting for one of their own to rise up & farm the Dalit votes like the BSP did in the early 90s.
This has been the trend for almost every caste grouping of significance in terms of sheer numbers or relative prosperity across India in the last 4-5 decades. TN the leader in such matters has a political outfit for every major caste to represent it . This trend is now being witnessed in UP since the last 10-15 years.
Even in such times where the BSP has been on the decline look at the voting percentage it commanded in UP in 2014 , 2019 & now. Though it's been declining it still got ~ 10% of the votes in the 2024 general elections & Mayawati seems to be planning a change in leadership with her nephew being propped up now.
Bahujan Samaj Party's sharp fall in UP from winning 10 Lok Sabha seats in 2019 to zero in 2024. Vote share dropped from 19.2% to 9.3%. Analysts attribute loss to opposition's 'Samvidhan Bachao' narrative cutting into core voters.
timesofindia.indiatimes.com
Why wouldn't the BJP or any other party pitch up a rival to divide votes of the BSP & get / retain power ? Mayawati's formula of Dalits + Muslims had to square up against SPs OBC + Muslims till she broke free in 2007 , a feat she's never managed to replicate since.
Chandrashekhar will attempt something similar & he's already given indications of it by his recent utterances . What he lacks is the organisational heft of a BSP. But if he can substantially eat into the Dalit votes of the BSP & prevent transfer of Dalit votes to a non Dalit party like the SP as happened in the recently concluded general elections in UP , it increases the BJP's prospects substantially.
This is an old political game & as long as Chandrashekhar goes off shooting his mouth he's only going to attract the Dalit youth vote & alienate every other vote bank including the Muslims but especially the OBCs . That suits the BJP very well. However it jeopardizes the poll plans of the BSP & the SP.
Eventually Chandra Shekhar's plan is to either take over the BSP which is impossible or to replace it & become a power broker / political entity with an extremely loyal core voter base like what the BSP & Mayawati have been since the early 1990s in UP politics.