The statement that political parties are not aligning or realigning on the basis of ideology in the new era of coalition politics is largely supported by several arguments.

First, coalition politics has shifted the focus of political parties from ideological differences to power sharing arrangements. There is now greater emphasis on pragmatic considerations rather than ideological positions, leading to political alliances without ideological agreement.

Second, the example of the NDA government clearly illustrates this trend. Most parties in the NDA did not agree with the 'Hindutva' ideology of the BJP, yet they came together to form a government and remained in power for a full term. This shows that ideological compatibility is no longer a prerequisite for alliance formation.

Third, State level parties are now sharing power at the national level and have played a central role in the country's politics. The distinction between State level and national level parties is fast becoming less important, as regional parties focus on governance opportunities rather than ideological alignment.

Fourth, just as the 'Congress system' in earlier times was itself a 'coalition' of different interests and social groups, modern coalitions represent similar pragmatic arrangements. Parties are more concerned with ensuring adequate share of power for various sections like OBCs rather than maintaining ideological purity.

Therefore, in the era of coalition politics, ideological considerations have taken a backseat to the practical demands of forming and maintaining governments.