Group 1 - The core argument presented by Meng Xiaosu is that the widely circulated data regarding China's vacant housing stock, particularly claims of 600 million or 3.5 billion empty homes, is exaggerated and misleading [1][3]. - Meng clarifies that the actual number of residential units in urban and rural areas totals approximately 7 billion, which includes 3.9 billion urban homes, 2.5 billion rural homes, and 80 million small property homes [5][8]. - He emphasizes that the current housing stock is not excessive, suggesting that a normal inventory of 500 million square meters of residential property is necessary to ensure consumer choice in the market [10][12]. Group 2 - Meng's analysis indicates that the misconception about housing surplus stems from misinterpretation of data, particularly the confusion between square meters and the number of units [3][10]. - He points out that a significant portion of the properties counted as housing includes non-residential structures in rural areas, which skews the perception of housing availability [8][12]. - Despite the data suggesting that families own an average of 1.3 to 1.5 homes, Meng concludes that there is still a need for continued construction of residential properties to meet market demands [5][12].